What's worse, Olin, is that you can also wipe out very low power crystals in XT mode!! Been there, done that - didn't like it!! An oversight on my part - put 8 evaluation units in the field and 5 failed in the first 2 weeks! I don't like "dumbing out" like that! ----- Original Message ----- From: "Olin Lathrop" To: Sent: Wednesday, June 18, 2003 8:07 AM Subject: Re: [PIC]: Clock options... > > 2) What exactly is the difference between LP and XT > > oscillator modes? > > How hard the oscillator output driver drives the crystal. LP is meant for > low power, but the driver is weak and therefore limited in frequency. XT > and HS successively make the driver stiffer, which increases its frequency > range but also causes it to draw more current. > > > ***************************************************************** > Embed Inc, embedded system specialists in Littleton Massachusetts > (978) 742-9014, http://www.embedinc.com > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.